Formation of ultrafine structure in as cast Ti7CuXSn alloys

Autor:	Rong-Sheng Chen, L.C. Tsao, M W Wu, R W Wu, C.H. Huang
Rok vydání:	2013
Předmět:	Materials science Mechanical Engineering Alloy Metallurgy engineering.material Condensed Matter Physics Microstructure Casting law.invention Optical microscope Mechanics of Materials law Martensite Volume fraction engineering General Materials Science Lamellar structure Eutectic system
Zdroj:	Materials Science and Technology. 29:1529-1536
ISSN:	1743-2847 0267-0836
Popis:	The purpose of the present study was to investigate the microstructure and microhardness of novel Ti7CuXSn alloys. Ti7CuXSn alloys with x = 0, 1, 2·5 and 5 wt-% were synthesised using a well developed arc melting and casting method. The microstructure was analysed by means of optical microscopy, SEM and X-ray diffraction methods. The cellular grain size dG, lamellar spacing λL, volume fraction of Ti2Cu phases fv and microhardness HV were measured. The addition of Sn content into the Ti7Cu alloy can effectively increase the solubility of Cu in the eutectoid microstructure (α-Ti+Ti2Cu), induce transformation of ultrafine α′ martensite microstructure and increase the volume fraction of the Ti2Cu phase fv. Especially, ultrafine microstructures have been produced in as cast Ti7Cu5Sn alloys. The value of HV increases with the increasing values of , and fv.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ac660dfca742ed5bed991090e0fa9c1d https://doi.org/10.1179/1743284713y.0000000257 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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